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Your #1 Source for Organic & Biological Farm Supplies
Your #1 Source for Organic & Biological Farm Supplies

EM1 Microbial Inoculant Concentrate - 1 Gallon

  • Organic Status - OMRI Listed


EM-1 Microbial Inoculant is a naturally-fermented, live microbial product. This is Dr Higa's Original Effective Microorganisms Concentrate. EM-1 Microbial...

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EM-1 Microbial Inoculant is a naturally-fermented, live microbial product. This is Dr Higa's Original Effective Microorganisms Concentrate. EM-1 Microbial Treatment is a safe alternative to synthetic chemicals that can be used for all plants, soils, cut flowers, fish ponds, composting, and deodorizing that is completely non-toxic and safe for humans, animals, and the planet.

Microorganisms: 1 million colony forming units/cc (units/ml), 1%: Lactobacillus plantarum, Lactobacillus casei, Lactobacillus fermentum, Lactobacillus delbrueckii, Bacillus subtilis, Saccharomyces cerevisiae, Rhodopseudomonas palustris.

96% Water and 3% Molasses   
*Not all microbes are listed on the actual label. EM-1 Microbial Treatment is made in the USA

How to Activate your EM-1- Activation is done purely for economical reasons. It is not a “dilution” of the original product. Activation does not change how the product performs in any way. Activated EM•1 can be used instead of the original EM•1 solution. However, it is inferior in regards to stability and cannot store as long as the original product. This solution cannot act as a starter solution to make endless generation. The Activated EM•1 should be used within 30 to 60 days after it is made.

Do not store EM·1® in direct sunlight. Store in closed container at room temperature. Do not freeze. 

Basic recipe for activation. Warm Water 20 parts (110º-120ºF)EM•1 1 part, Molasses 1 part, Airtight Container, pH Meter or paper, Thermometer. Pour Molasses into container. Add hot water equal to 2x the amount of molasses. Water should be about 160-170ºF. Add cooler water until container is almost full (leave room for EM•1!). Make sure temperature is no higher than 120ºF. Add EM•1. Check the pH of the solution before closing and make a note of starting pH. Close container. Affix airlock if desired. Or, you will need to open container several times during fermentation to release pressure. Not doing so can cause the container to rupture. Check the pH of the solution in 24 hours and daily thereafter. Once the pH drops below 4.0 allow Activated EM to mature for an additional 7-10 days before using.

The Use of Activated EM 1 in field crops
Greenhouse and Nursery Applications
Soil Treatment
Eliminate Odors
Lawn Treatment
Apply EM·1® with a water can, any type of sprayer, or inject through an irrigation system at the rate of 1 ounce per gallon of water. For best results, apply EM·1® once a week.
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Original price $79.70 - Original price $79.70
Original price
$79.70 - $79.70
Current price $79.70

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We have great pallet rates with our partner carriers and, if you're east of the Mississippi, you likely qualify for flat rates up to 2400 lbs. We can ship any size order but for orders of 5000 lbs and up (or if the website is only quoting UPS rates) you'll want to call us 800-540-9181 for the best shipping rate. Thank you!